Ship tail bearing and tail pipe water lubrication device

Abstract

The invention provides a ship tail bearing and tail pipe water lubrication device which comprises tail bearings, tail pipes and supporting seats. The tail bearings and the tail pipes are fixed to a ship through the supporting seats, each tail bearing is composed of two half structures which can be separated in the axial direction of the tail bearing, each tail pipe is divided into an upper half part tail pipe and a lower half tail pipe part which can be separated in the axial direction, and a copper jacket is arranged outside each tail bearing and is composed of two half structures which can be separated in the axial direction of the copper jacket. As the tail bearings, the tail pipes and the copper jackets can be halved in the axial direction, no paddle or shaft is detached when the tail bearings are checked or maintained or replaced, the maintenance period is shortened, and the maintenance cost is lowered. A cooling water inlet is formed in the front end of each tail bearing and used for being connected with an independent special seawater cooling water pump and a cooling water purification treatment device, cooling seawater is forcibly drained into the first tail bearing through the corresponding cooling water inlet, all the subsequent water lubrication tail bearings can be cooled and lubricated due to the guiding effect of the tail pipes, and abnormal abrasion to the water lubrication bearings due to insufficient water supply or bad water quality can be avoided.

Description

technical field [0001] The invention relates to a marine water lubricated stern shaft stern tube device. Background technique [0002] The lubrication of the stern shaft of a ship is distinguished by lubrication, and there are two types of lubrication: water lubrication and oil lubrication. The water-lubricated stern shaft and stern tube device is suitable for ships sailing in waters with clean water and no sediment. Tail bearings are rubber bearings or polymer composite bearings such as "Fan Shi Ke", "Sai Long" and "Flying Dragon", with water as cooling and lubricant. The water for cooling and lubricating the bearings can be seawater after cooling the main engine, and the seawater discharged from the seawater cooler of the main engine is connected to the stern shaft stern tube device through the water inlet of the first seal, and is discharged outboard after cooling and lubricating the bearings. [0003] The traditional water-lubricated stern bearing is designed without a...

AI Technical Summary

Problems solved by technology

However, because it retains the oil-lubricated part, defects such as oil-lubricated oil leakage pollution will also occur.

Images